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<h1 id="sec_name">
<span data-if="hdevelop" style="display:inline;">exp_image</span><span data-if="c" style="display:none;">exp_image</span><span data-if="cpp" style="display:none;">ExpImage</span><span data-if="dotnet" style="display:none;">ExpImage</span><span data-if="python" style="display:none;">exp_image</span> (算子名称)</h1>
<h2>名称</h2>
<p><code><span data-if="hdevelop" style="display:inline;">exp_image</span><span data-if="c" style="display:none;">exp_image</span><span data-if="cpp" style="display:none;">ExpImage</span><span data-if="dotnet" style="display:none;">ExpImage</span><span data-if="python" style="display:none;">exp_image</span></code> — Calculate the exponentiation of an image.</p>
<h2 id="sec_synopsis">参数签名</h2>
<div data-if="hdevelop" style="display:inline;">
<p>
<code><b>exp_image</b>(<a href="#Image"><i>Image</i></a> : <a href="#ExpImage"><i>ExpImage</i></a> : <a href="#Base"><i>Base</i></a> : )</code></p>
</div>
<div data-if="c" style="display:none;">
<p>
<code>Herror <b>exp_image</b>(const Hobject <a href="#Image"><i>Image</i></a>, Hobject* <a href="#ExpImage"><i>ExpImage</i></a>, const char* <a href="#Base"><i>Base</i></a>)</code></p>
<p>
<code>Herror <b>T_exp_image</b>(const Hobject <a href="#Image"><i>Image</i></a>, Hobject* <a href="#ExpImage"><i>ExpImage</i></a>, const Htuple <a href="#Base"><i>Base</i></a>)</code></p>
</div>
<div data-if="cpp" style="display:none;">
<p>
<code>void <b>ExpImage</b>(const HObject&amp; <a href="#Image"><i>Image</i></a>, HObject* <a href="#ExpImage"><i>ExpImage</i></a>, const HTuple&amp; <a href="#Base"><i>Base</i></a>)</code></p>
<p>
<code><a href="HImage.html">HImage</a> <a href="HImage.html">HImage</a>::<b>ExpImage</b>(const HTuple&amp; <a href="#Base"><i>Base</i></a>) const</code></p>
<p>
<code><a href="HImage.html">HImage</a> <a href="HImage.html">HImage</a>::<b>ExpImage</b>(const HString&amp; <a href="#Base"><i>Base</i></a>) const</code></p>
<p>
<code><a href="HImage.html">HImage</a> <a href="HImage.html">HImage</a>::<b>ExpImage</b>(const char* <a href="#Base"><i>Base</i></a>) const</code></p>
<p>
<code><a href="HImage.html">HImage</a> <a href="HImage.html">HImage</a>::<b>ExpImage</b>(const wchar_t* <a href="#Base"><i>Base</i></a>) const  <span class="signnote">
            (
            Windows only)
          </span></code></p>
</div>
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<div data-if="dotnet" style="display:none;">
<p>
<code>static void <a href="HOperatorSet.html">HOperatorSet</a>.<b>ExpImage</b>(<a href="HObject.html">HObject</a> <a href="#Image"><i>image</i></a>, out <a href="HObject.html">HObject</a> <a href="#ExpImage"><i>expImage</i></a>, <a href="HTuple.html">HTuple</a> <a href="#Base"><i>baseVal</i></a>)</code></p>
<p>
<code><a href="HImage.html">HImage</a> <a href="HImage.html">HImage</a>.<b>ExpImage</b>(<a href="HTuple.html">HTuple</a> <a href="#Base"><i>baseVal</i></a>)</code></p>
<p>
<code><a href="HImage.html">HImage</a> <a href="HImage.html">HImage</a>.<b>ExpImage</b>(string <a href="#Base"><i>baseVal</i></a>)</code></p>
</div>
<div data-if="python" style="display:none;">
<p>
<code>def <b>exp_image</b>(<a href="#Image"><i>image</i></a>: HObject, <a href="#Base"><i>base</i></a>: Union[int, float, str]) -&gt; HObject</code></p>
</div>
<h2 id="sec_description">描述</h2>
<p><code><span data-if="hdevelop" style="display:inline">exp_image</span><span data-if="c" style="display:none">exp_image</span><span data-if="cpp" style="display:none">ExpImage</span><span data-if="com" style="display:none">ExpImage</span><span data-if="dotnet" style="display:none">ExpImage</span><span data-if="python" style="display:none">exp_image</span></code> calculates the exponentiation to the base
<a href="#Base"><i><code><span data-if="hdevelop" style="display:inline">Base</span><span data-if="c" style="display:none">Base</span><span data-if="cpp" style="display:none">Base</span><span data-if="com" style="display:none">Base</span><span data-if="dotnet" style="display:none">baseVal</span><span data-if="python" style="display:none">base</span></code></i></a> of an input image <a href="#Image"><i><code><span data-if="hdevelop" style="display:inline">Image</span><span data-if="c" style="display:none">Image</span><span data-if="cpp" style="display:none">Image</span><span data-if="com" style="display:none">Image</span><span data-if="dotnet" style="display:none">image</span><span data-if="python" style="display:none">image</span></code></i></a> and stores the result
in the image <a href="#ExpImage"><i><code><span data-if="hdevelop" style="display:inline">ExpImage</span><span data-if="c" style="display:none">ExpImage</span><span data-if="cpp" style="display:none">ExpImage</span><span data-if="com" style="display:none">ExpImage</span><span data-if="dotnet" style="display:none">expImage</span><span data-if="python" style="display:none">exp_image</span></code></i></a>.  If <a href="#Image"><i><code><span data-if="hdevelop" style="display:inline">Image</span><span data-if="c" style="display:none">Image</span><span data-if="cpp" style="display:none">Image</span><span data-if="com" style="display:none">Image</span><span data-if="dotnet" style="display:none">image</span><span data-if="python" style="display:none">image</span></code></i></a> contains gray
values that would overflow the range of <a href="#ExpImage"><i><code><span data-if="hdevelop" style="display:inline">ExpImage</span><span data-if="c" style="display:none">ExpImage</span><span data-if="cpp" style="display:none">ExpImage</span><span data-if="com" style="display:none">ExpImage</span><span data-if="dotnet" style="display:none">expImage</span><span data-if="python" style="display:none">exp_image</span></code></i></a>, e.g., &gt;
88.722839 for <a href="#Base"><i><code><span data-if="hdevelop" style="display:inline">Base</span><span data-if="c" style="display:none">Base</span><span data-if="cpp" style="display:none">Base</span><span data-if="com" style="display:none">Base</span><span data-if="dotnet" style="display:none">baseVal</span><span data-if="python" style="display:none">base</span></code></i></a> = <i><span data-if="hdevelop" style="display:inline">'e'</span><span data-if="c" style="display:none">"e"</span><span data-if="cpp" style="display:none">"e"</span><span data-if="com" style="display:none">"e"</span><span data-if="dotnet" style="display:none">"e"</span><span data-if="python" style="display:none">"e"</span></i>, the corresponding
gray values in <a href="#ExpImage"><i><code><span data-if="hdevelop" style="display:inline">ExpImage</span><span data-if="c" style="display:none">ExpImage</span><span data-if="cpp" style="display:none">ExpImage</span><span data-if="com" style="display:none">ExpImage</span><span data-if="dotnet" style="display:none">expImage</span><span data-if="python" style="display:none">exp_image</span></code></i></a> are set to the largest value
representable in <a href="#ExpImage"><i><code><span data-if="hdevelop" style="display:inline">ExpImage</span><span data-if="c" style="display:none">ExpImage</span><span data-if="cpp" style="display:none">ExpImage</span><span data-if="com" style="display:none">ExpImage</span><span data-if="dotnet" style="display:none">expImage</span><span data-if="python" style="display:none">exp_image</span></code></i></a> (i.e., <span title="1" style="vertical-align:-0.155012em" class="math"><!-- Created by MetaPost 1.902 on 2023.05.15:2033 --><svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" version="1.1" width="7.44581em" height="1.01898em" viewBox="0 0 119.132919 16.303741">
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</svg></span>).</p>
<h2 id="sec_attention">注意</h2>
<p><code><span data-if="hdevelop" style="display:inline">exp_image</span><span data-if="c" style="display:none">exp_image</span><span data-if="cpp" style="display:none">ExpImage</span><span data-if="com" style="display:none">ExpImage</span><span data-if="dotnet" style="display:none">ExpImage</span><span data-if="python" style="display:none">exp_image</span></code> can be executed on an OpenCL device for byte,
int1, int2, uint2, int4, and real images. Note that the results of
the OpenCL code may vary from the results produced by the CPU.</p>
<h2 id="sec_execution">运行信息</h2>
<ul>
    
      <li>支持OpenCL计算设备。</li>
    
  <li>多线程类型:可重入(与非独占操作符并行运行)。</li>
<li>多线程作用域:全局(可以从任何线程调用)。</li>
  
    <li>在元组级别自动并行化。</li>
    <li>在图像通道级别自动并行化。</li>
    <li>Automatically parallelized on  domain level.</li>
  
</ul>
<h2 id="sec_parameters">参数表</h2>
  <div class="par">
<div class="parhead">
<span id="Image" class="parname"><b><code><span data-if="hdevelop" style="display:inline">Image</span><span data-if="c" style="display:none">Image</span><span data-if="cpp" style="display:none">Image</span><span data-if="com" style="display:none">Image</span><span data-if="dotnet" style="display:none">image</span><span data-if="python" style="display:none">image</span></code></b> (input_object)  </span><span>(multichannel-)image(-array) <code>→</code> <span data-if="hdevelop" style="display:inline">object</span><span data-if="dotnet" style="display:none"><a href="HImage.html">HImage</a></span><span data-if="python" style="display:none">HObject</span><span data-if="cpp" style="display:none"><a href="HImage.html">HImage</a></span><span data-if="c" style="display:none">Hobject</span> (byte* / int1* / uint2* / int2* / int4* / int8 / real*)<i> *allowed for compute devices</i></span>
</div>
<p class="pardesc">Input image.</p>
</div>
  <div class="par">
<div class="parhead">
<span id="ExpImage" class="parname"><b><code><span data-if="hdevelop" style="display:inline">ExpImage</span><span data-if="c" style="display:none">ExpImage</span><span data-if="cpp" style="display:none">ExpImage</span><span data-if="com" style="display:none">ExpImage</span><span data-if="dotnet" style="display:none">expImage</span><span data-if="python" style="display:none">exp_image</span></code></b> (output_object)  </span><span>(multichannel-)image(-array) <code>→</code> <span data-if="hdevelop" style="display:inline">object</span><span data-if="dotnet" style="display:none"><a href="HImage.html">HImage</a></span><span data-if="python" style="display:none">HObject</span><span data-if="cpp" style="display:none"><a href="HImage.html">HImage</a></span><span data-if="c" style="display:none">Hobject *</span> (real)</span>
</div>
<p class="pardesc">Output image.</p>
</div>
  <div class="par">
<div class="parhead">
<span id="Base" class="parname"><b><code><span data-if="hdevelop" style="display:inline">Base</span><span data-if="c" style="display:none">Base</span><span data-if="cpp" style="display:none">Base</span><span data-if="com" style="display:none">Base</span><span data-if="dotnet" style="display:none">baseVal</span><span data-if="python" style="display:none">base</span></code></b> (input_control)  </span><span>number <code>→</code> <span data-if="dotnet" style="display:none"><a href="HTuple.html">HTuple</a></span><span data-if="python" style="display:none">Union[int, float, str]</span><span data-if="cpp" style="display:none"><a href="HTuple.html">HTuple</a></span><span data-if="c" style="display:none">Htuple</span><span data-if="hdevelop" style="display:inline"> (string / </span><span data-if="hdevelop" style="display:inline">integer / </span><span data-if="hdevelop" style="display:inline">real)</span><span data-if="dotnet" style="display:none"> (<i>string</i> / </span><span data-if="dotnet" style="display:none">int / </span><span data-if="dotnet" style="display:none">long / </span><span data-if="dotnet" style="display:none">double)</span><span data-if="cpp" style="display:none"> (<i>HString</i> / </span><span data-if="cpp" style="display:none">Hlong / </span><span data-if="cpp" style="display:none">double)</span><span data-if="c" style="display:none"> (<i>char*</i> / </span><span data-if="c" style="display:none">Hlong / </span><span data-if="c" style="display:none">double)</span></span>
</div>
<p class="pardesc">Base of the exponentiation.</p>
<p class="pardesc"><span class="parcat">Default:
      </span>
    <span data-if="hdevelop" style="display:inline">'e'</span>
    <span data-if="c" style="display:none">"e"</span>
    <span data-if="cpp" style="display:none">"e"</span>
    <span data-if="com" style="display:none">"e"</span>
    <span data-if="dotnet" style="display:none">"e"</span>
    <span data-if="python" style="display:none">"e"</span>
</p>
<p class="pardesc"><span class="parcat">Suggested values:
      </span><span data-if="hdevelop" style="display:inline">'e'</span><span data-if="c" style="display:none">"e"</span><span data-if="cpp" style="display:none">"e"</span><span data-if="com" style="display:none">"e"</span><span data-if="dotnet" style="display:none">"e"</span><span data-if="python" style="display:none">"e"</span>, 2, 10</p>
</div>
<h2 id="sec_see">参考其它</h2>
<p>
<code><a href="pow_image.html"><span data-if="hdevelop" style="display:inline">pow_image</span><span data-if="c" style="display:none">pow_image</span><span data-if="cpp" style="display:none">PowImage</span><span data-if="com" style="display:none">PowImage</span><span data-if="dotnet" style="display:none">PowImage</span><span data-if="python" style="display:none">pow_image</span></a></code>, 
<code><a href="log_image.html"><span data-if="hdevelop" style="display:inline">log_image</span><span data-if="c" style="display:none">log_image</span><span data-if="cpp" style="display:none">LogImage</span><span data-if="com" style="display:none">LogImage</span><span data-if="dotnet" style="display:none">LogImage</span><span data-if="python" style="display:none">log_image</span></a></code>
</p>
<h2 id="sec_module">模块</h2>
<p>
Foundation</p>
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